Coke-oven apparatus



OV- 5, w34 J. VAN ACKEREN COKE OVEN AEPARATUS Filed Jan. l5,

1931 2 Sheets-Shee'.

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UNITED sTATEs PATENT oFFIcE COKE-OVEN APPARATUS Joseph van Ackeren,OHara Township, Allegheny County, Pa., assignor to The Koppers Companyof Delaware, a corporation of Delaware Application January 15, 1931,Serial No. 508,915

4 Claims. (Cl. 2202-248) My invention relates to coke-oven apparatustend to warp the outer member, since these sec'- and particularly toframes for coke-oven doors. tions are not integral with each other orwith My' invention is particularly applicable to the plate member.Furthermore, since the inner frames for the doors of coke ovens of thehorisections may be independently replaced without 5 zontal type and isespecially adapted for use in disturbing the outer structure, the doorframe 60 connection with doors of the self-sealing type. may be keptinrepair atmuch lower expense.

In the production of frames for coke-oven The details of my inventionwill be described in doors, it has been the practice heretofore to con'-connection with the accompanying drawings, in struct the frames in asingle piece comprising a which plate portion for engaging the side wallof the Figure 1 is a view in transverse vertical sec- 65 battery and aange portion for projecting Withtion of a portion of a coke-ovenbattery; in the end of the coke-oven door opening. The Fig. 2 is anenlarged horizontal sectional view frame has been of cast iron and thelarge casting of a portion of a coke-oven battery and an asso--` thatis, required has been dilicult to construct ciated door frame taken online 2 2 of Fig. 4;

and expensive becauseof its size. l Fig. 3 is a front elevational Viewof a door 70 Castings of this character have been diicult to frameconstructed in accordance with my inmaintain in proper working orderbecause of vention; and their tendency to warp in use. This conditionFig. 4 is a rear elevational view of the door has resulted from the factthat the inner flange frame.

has been subjected to materially higher tem- Referring particularly toFig. 1, a coke-oven 75 peratures than the outer portion which is cooledbattery 1, 'only a portion of which is shown, by contact with theatmosphere. This unequal comprises a series of oven chambers 2, only oneheating has expanded the flange within the door of which appears in thedrawings, a top 3, an asand caused the warping of the outer or plateporcension pipe 4 and a collecting main 5. The battion. When theseframes have been used for tery is alsoprovided with the usualregenerators 80 self-sealing doors of the type in which an outer 6, oneof whichv is shown, a producer gas main ilange portion has been adaptedto engage ametal 7 and a coke-oven gas main 8. knife-edge portion suchas is employed in the Each coke-oven chamber 2 is provided with'a Wolffself-sealing door (British Patent 314,281 removable door 9 that ispositioned within a and United States Patent 1,908,467), the warpingframe 10, to close the doorway to the 'coking 35 of the frame hasseriously interfered with the chambers, the details of which are shownin successful operation of the sealing means. Figs. 2, 3 and 4.

It has been proposed heretofore to construct Each door frame 10, whichis adapted for use the frame of alloys of metal that are highly reinconnection with self-sealing doors of the sistant to warping strains andthat maintain the Woll type (British Patent 314,281), comprises 90alinement, of the frames to a higher degree than a substantiallysingle-piece metallic door-frame inthe case of cast iron. Such frameshave, howor outer plate member 12, which engages the ever, been veryexpensive by reason of the nature outer surface of the side wall 13 ofthe battery of the material employed. and extends continuously aroundthe border of 40 In accordance with the present invention, I the dooropening and door body, as showninFigs. 95

provide a frame for use in connection with self- 2 and 3. The member l2is held in position to re- Sealillg dOOIS that iS S0 COIlStl'llCted 8St0 mantain the side walls of the battery by buckstays 14, tain itsalinement. The frame is constructed of which are in the form of channelmembers and an outer portion or plate member for engaging the arearranged in pairs, each pair being `disposed side wall of the batteryaround the opening of between adjacent ovens. The inner edge of the 100the oven door. The inner portion, which correplate member 12 is providedwith an outwardly- Y spends to the ange Of the 1151181 Oven dOOI,COmextending ange 15 for a purpose to be later deprises a plurality ofrelatively short sections, each scribed, of which is detachably securedto the outer plate The inner portion of the door frame comprises 5omember. These sections may be independently an inner lining 16'constituted of a series of krel- 105 removed or replaced. atively shortsections 16 that are angular in cross- This arrangement insures that theframe will section, as best appears in Fig. 2. On` ange maintain itsalinement by reason of the fact that 17 extends parallel with theopening of the oven,A the higher temperatures to which the interiorwhile the other ange 18 extends parallel with the .55 sections aresubjected will'not cause strains that plate member 12 and is adapted tobe detachably 1 10;

passageway 21 through the plate member 12.-

Through these alined openings or passageways, a mixture of re clay andsand mortar is introduced to provide an insulating or cementitiousmaterial, indicated at 22, between the plate member l2-and therefractory material of the battery wall.

Asbestos rope 23 is preferably inserted between the inner edge of theflange 17 in order to insulate the latter from the relatively high'temperature ofthe oven wall. Any suitable material, such as rock wool24, may be inserted in the spaces between the edges of the adjoiningplate members 12.

The`door opening is closed by a door body indicated generally by thereference numeral 26 of the Wolff self-sealing type aforesaid whichcomprises a framework 27 for engaging the projecting edges of thesections 16. The door is also provided with a member 28 having outwardlyprojecting anges 29, each of which is provided with a spring platemember orI elastic sealing plate 30 for pressing a metal strip 31 havinga substantially knife edge 31' into firm engagement with theoutwardly-projecting flange 15 of the frame 12. The surface 15 of theflange 15 constitutes an abuttingsealing surface and the knife edge 31constitutes the sealing edge of the metallic sealing members for formingan edged and abutting sealing engagement between them.

In the operationl of the battery, the sections 16 vbecome more highlyheated than the plate member 12,-but the strains due to expansion withinthe sections are not transmitted to the plate member 12. The platemembers 12, by reason of their contactwith the atmosphere, re-

e main relatively cool and there is, therefore, little tendency for themto warp.

In view of the difference in conditions to which they are subjected, thesections' 16 have a short life relatively to that of the plate member 12and it is, accordingly, necessary to replace them much oftener, In theyconstruction of the prior art,- it was necessary to remove the buckstaysin-order that theintegral frame might be removed and replaced because ofdefective portions in the 'door opening/r In the door frame of myinvention, however, it is only necessary to remove the bolts 19 fromthedefective sections lfand the latter may be removed and, replaced withnew sections. All of this may be accomplished without disturbing eitherthe buckstays or the plate member 12. `The advantages of an arrangementthat will permit the replacement of defective sections withoutdisturbing the buckstays or the outer portion of the door frame will beappreciated by those familiar with the difllculties that have attendedthe replacement of door frames of the prior art.

Furthermore, theseparation of the'door frame' into several parts insuresvthat the flange members 15 will maintain their alinement whereby theymay effectively co-operate with the sealing means on the door to retainthe gases of distillation within the oven chamber.

T'he separation of the door frame-into its parts the strains that werepresent in an integral struc- -ture. Also, in view of the fact that theinner sections may be easily replaced'individually, they may be made ofordinary east iron because it is not necessary that they have the longlife that is desirable for the outer portion of the frame.

'Ihe foregoing and other advantages will be appreciated by those skilledin the art of construction and operation of coke-oven batteries.

I claim as my invention:

1. In a coke oven apparatus, a coke oven doorbody; a stationary cokeoven door-frame therefor comprising a substantially single-piecemetallic door-frame vplate extending continuously around the border ofsaid door-body; metallic sealing members between the door-body and thedoor-frame, said sealing members including an abutting sealing surfaceand an elastic sealing plate having an edged and abutting sealingengagement, the abutting sealing surface being stationary on the outersurface of said door-frame plate and the elastic sealing plate beingcarried by the door-body; and an inner lining on the inner surface ofthe door-frame plate comprising individual metallicV sections, separatefrom each other and from the door-frame plate, arranged adjacent eachother and so as Ato form an interposed heatfprotective lining on theinner surface of the edge portion of the door-frame plate adjacent thedoor interposed between the coking chamber and the door frame.

2. In a coke oven, a coking chamber; an enclosing wall therefor having acokev oven door opening into said chamber; a stationary coke ovendoor-frame extending continuously around the borderpf said door opening;a coke oven doorbody for said door-frame; 4metallic sealing membersbetween the door-body and the door-frame, said sealing members includingan abutting .sealing surface and an elastic sealing plate having anedged and abutting sealing engagement, the abutting sealing surfacebeing stationary on the outer surface of said door-frame plate and theelastic sealing plate being carried by fthe door-body; said door-framecomprising a substantially single-piece metallic plate extendingcontinuously around the border of said door opening: and an inner liningof individual metallic sections extending into the door .opening atanangle to the metallic plate, Vthe metallicsections beingr separate fromeach other and from the metallic I plate and arranged adjacent eachother so as to form an interposed heat protective lining on the innersurface of the edge portion of the metallic plate adjacent the dooropening interposed be tween the door-body and the door-frame, saidIsealing members including an abutting sealing surface and an elasticsealing plate having an edged and abutting sealing engagement, the abut-.ting sealing surface being stationary on the outer surface of saiddoor-frame plate and the elastic sealing plate being carried by thedoor-body; said door-frame comprising a substantially singlepiecemetallic plate extending continuously around the border of said dooropening; and an inner lining, of individual metallic sections extendinginto the door opening at arrangle to the metallic plate, the metallicsections being separate from each other and-from the metallic plate andarranged adjacent each other so as -to form an interposed heatprotective lining on the inner surface of the edge portion of themetallic plate adjacent the door opening interposed between the cokingchamber and the door trame; and buck stays for retaining said door-framein position relative to the door.

4. In a coke oven, a coking chamber; an eninto said chamber; astationary coke oven doorframe extending continuously around the borderof said doorway; a coke oven door-body for said door-frame;` metallicsealing members between the door-body and the door-frame, said sealingmembers including an abutting sealing surface and an elastic sealingplate having an edged and abutting sealing engagement, the abuttingsealing surface being stationary on the outer surface of said door-frameplate and the elastic sealing plate being carried by the door-body; saiddoorframe comprising a substantially single-piece metallic plateextending continuously around the border of said doorway; and on innerlining oi' individual metallic sections extending into the doorway at anangle to the metallic plate, the

heat protective lining on the inner surface of the edge portion of themetallic plate adjacent the doorway interposed between the cokingchamber and the door frame; said individual sections and said metallicplate having passageways in alignment for introduction of packingmaterial bejacentv each other so as' to form an interposed closing walltherefor having a' coke oven doorway n ilo

